Re: [PATCH v3 1/7] hugetlb: code clean for hugetlb_hstate_alloc_pages

From: Gang Li
Date: Wed Jan 10 2024 - 22:31:36 EST




On 2024/1/10 18:19, Muchun Song wrote:


On 2024/1/2 21:12, Gang Li wrote:
The readability of `hugetlb_hstate_alloc_pages` is poor. By cleaning the
code, its readability can be improved, facilitating future modifications.

This patch extracts two functions to reduce the complexity of
`hugetlb_hstate_alloc_pages` and has no functional changes.

- hugetlb_hstate_alloc_pages_node_specific() to handle iterates through
   each online node and performs allocation if necessary.
- hugetlb_hstate_alloc_pages_report() report error during allocation.
   And the value of h->max_huge_pages is updated accordingly.

Signed-off-by: Gang Li <gang.li@xxxxxxxxx>
---
  mm/hugetlb.c | 46 +++++++++++++++++++++++++++++-----------------
  1 file changed, 29 insertions(+), 17 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ed1581b670d42..2606135ec55e6 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3482,6 +3482,33 @@ static void __init hugetlb_hstate_alloc_pages_onenode(struct hstate *h, int nid)
      h->max_huge_pages_node[nid] = i;
  }
+static bool __init hugetlb_hstate_alloc_pages_node_specific(struct hstate *h)

I'd like to rename this to hugetlb_hstate_alloc_pages_specific_nodes.

Otherwise, LGTM.

Reviewed-by: Muchun Song <muchun.song@xxxxxxxxx>


Thanks! I will adjust it in the next version.